matplotlib graphing data problems

i just finished my prediction for a project i was working. I want to try and use a graph for some visualization , but im having trouble finding one thats suitable , the data i have is pretty big. Ill leave my code and an example of what my results look like for 1 column at the bottom. this is only 1 column , i would like to graph 1 column first to see how it works. ive tried to use a bar graph , and it comes out kind of weird, just one whole solid blue bar. so im not sure what graphs are good for this kind of info.

You're very vague in terms of what you expect the output to be, but I think you should check out the seaborn package, and particularly the tutorial section on visualising univariate datasets, which should give you a couple of examples and ideas as to what you can do to visualise your outputs.